Polimill, a Japanese startup, is building public AI infrastructure for the country's next generation of municipal services. According to OpenAI, Polimill uses GPT models and Codex to help local governments search and apply administrative knowledge more effectively.

The integration of OpenAI's tools is intended to streamline how municipalities access and utilize their own records and procedures. By leveraging Codex, Polimill also accelerates the development of its platform, reducing the time needed to build and refine features.

This partnership highlights a practical application of large language models in the public sector, where efficiency and accuracy in handling administrative information are critical. The source does not provide specific performance metrics or deployment details, but it positions Polimill as a key example of AI-driven government modernization in Japan.